<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div>游戏</div>
    <select name="game" id="game">
        <option value="0" name="game">111</option>
        <option value="1" name="game">222</option>
        <option value="2" name="game">333</option>
    </select>
    <button class="btn"></button>
</body>
</html>
<script>
    let str = ['111','222','333']

    const btn = document.querySelector('.btn')

    

</script>